sac

In a dark room, a doctor pointed to an hourglass shape glowing on the ultrasound screen: There was her amniotic sac, funneling into her dilated cervix, and there was their tiny daughter’s foot, dipping out.

From Salon ● May 27, 2026

In these cases, the sheer size of the cell and the presence of a large yolk sac prevent the actin ring from fully closing.

From Science Daily ● Feb. 28, 2026

Meanwhile, the cul de sac, a street design much in favor with the architects of suburban developments, have become artificial catchments for these highly flammable weeds.

From The Wall Street Journal ● Nov. 17, 2025

Battling strong currents, Ralph Pace captured this image of a swell shark egg case, revealing a glowing embryo, complete with gill slits and a yolk sac.

From BBC ● Oct. 14, 2025

He had scooped out a special place in the manure for the sac, next to the board fence.

From "Charlotte's Web" by E.B. White

The researchers next placed the larvae inside miniature pressure chambers to determine how much pressure the air sacs could withstand before collapsing.

From Science Daily ● Jul. 27, 2026

The sacs survived pressures equal to those found at depths of more than 400 meters, which is far deeper than the larvae normally travel during their daily migration.

From Science Daily ● Jul. 27, 2026

In another chapter, Mr. Haskell follows the path of an owlet moth into the cranefly orchid’s flower and lets us watch how sacs of pollen attach themselves to the insect’s eye.

From The Wall Street Journal ● Apr. 17, 2026

The spiders’ white egg sacs, usually laid between October and November, are often attached to leaves, tree bark and flat structures and contain 400 to 500 eggs, according to Jorowatch.

From Los Angeles Times ● Apr. 9, 2026

They’re the most elaborate ones I’ve done yet: divided thoroughfares, alleys, cul de sacs, tunnels, toll plazas, and traffic circles.

From "It’s Kind of a Funny Story" by Ned Vizzini